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This ATX power conversion cable adapts a traditional 20-pin PSU to fit modern 24-pin motherboards with 20+4 pin design. Built with premium 18AWG thick wires, it provides reliable voltage transmission and supports stable system operation under daily and high-load conditions. The 12-inch flexible length simplifies internal routing, reduces cable clutter and improves chassis airflow. Sturdy insulated housing and solid connector terminals enhance safety and service life. Perfect for retro PC upgrades, power supply matching and desktop hardware replacement.